On Nov 5, 10:41 am, Meat Plow wrote:
On Sun, 04 Nov 2007 21:52:44 -0800, 97tjMike wrote:
On Nov 4, 1:00 pm, Smitty Two wrote:
In article ,
"William Sommerwerck" wrote:
"97tjMike" wrote in message
oups.com...
On Nov 4, 12:10 pm, Meat Plow wrote:
On Sun, 04 Nov 2007 08:40:49 -0800, 97tjMike wrote:
Probably a good idea especially if you don't know the
difference between a resistor and a diode.
ah well i know their difference functionality wise, just not
appearance wise. i'd call it a resistor except it has a glossy
coating common to diodes
I believe the Mr. Plow was not trying to be lightly humorous, but was being
sarcastic at your expense.
I believe the Mr. Plow was being neither sarcastic nor humorous, but
merely matter-of-fact. Tis a rare individual who knows the theoretical
difference between a resistor and a diode but cannot properly
distinguish the two. Nevertheless, the OP is clearly unqualified to
troubleshoot to the component level.
I wouldn't concern yourself with my lack of expertise so much. I have
and EE friend who I'm working with. Just didn't have a chance to have
him look at the board before I posted this. After having him looking
at the board, we found that they are indeed diodes, and they are
soldered to pins 1-3, which, according to a schematic of the ICs which
we found online, pins 1-3 are not connected to anything. That's why
I'm very curious why someone would put an diode to those terminals.
But anyways we're gonna try to replace the IC units themselves (and
omit the diodes), because from what I've read elsewhere it seems that
the ICs tend to fail frequently.
If they are serviced correctly, those devices shouldn't fail frequently.
I found that on my 2000 Panasonic 53" TV they failed earlier this year
because the mounting screws were not tight. I don't know if they were not
tight from the factory or somehow from heat cool cycles managed to loosen
on their own. Regardless if properly installed and there are no other
hidden problems, the repeat failure rate should be fairly low. Remember to
use original factory parts and not OEM. Those devices are probably the
hardest working electronics in the entire set.
here's a followup:
we replaced the two IC chips in the board, and,while the colors seem
to be more well definied, the blue convergence still will not adjust.
We were able to adjust the focus on the picture tube, so focus is no
longer an issue. However, the convergence problem still occurs. Should
we replace the 1st convergence board (not the one with the IC chips.)?
Just looking for reccomendations. Thanks
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